Non-freezing radiator.



J. W. DALE/IAN.

NON-FREEZING RADIATOR.

APPLICATION FILED FEB.3, 1911.

1 1 14,588., K Patented Oct. 20, 1914.

srArrEs PATENT OFFiOE.

JOHN W. DALMAN', OF CHICAGO, ILLINOIS.

NON -FREEZING RADIATOR.

Specification of Letters Patent.

i Patented 'Oct. 20, 1914.

Application filed February 3, 1911. Serial No. 606,369.

To all whom it. may concern:

Be it known that I, Join: W. Dammn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Non-Freezing Radiators, ofwhichthe following is a specification.

My invention relates to means for cooling hydro-carbon engines and relates particularly to the cooling water system and means for preventing the freezing thereof in cold weather.

As will be readily appreciated, the matter of preventing the freezing of the medium used in cooling the cylinders of hydrocarbon engines particularly as applied to aptomobiles, becomes a serious problem during the winter months especially where the automobile is allowed to stand out of doors for any continued period. I have therefore devised a form of cooling water system which may safely be allowed to stand for any length of time in any kind of weather without danger of freezing.

A further object is to provide a device of this description which shall be entirely automatic in its nature and which may be easily removed for repairs if necessary.

My invention will be more readily understood by reference to the accompanying drawings, wherein,

Figure 1 is a side elevation partly in section, showing a form of hydrocarbon-engine and a radiator, as applied to an automobile; Fig. 2 is a frontelevation showing my improved radiator.

Referring more particularly to the drawings, it willbe seen'that I mount a hvdrocarbon engine 10 on proper supports 11, the engine having a mainshaft 12, a .fly or clutch wheel 13, and water jacketed cylinders 14.

A pump 15 is connected to the shaft 12. by

suitable gears 16. A fan 17, rotatably mounted on the cylinder casing 14, is connected to the shaft 12 by a belt'l8. Theradiator is connected to the .water jackets of the cylinders by means of the pipe 19, which communicates with the header 20. Radiator pipes 21 communicate with the bottom header 22, a suitable grating 23 being. provided in front-of the pipes. A casing 24 is secured to the lower end of the radiator and within this casing I provide a water reser- .voir 25, separated from the outside casing 24 by suitable means, thus leaving an insuter chamber 25 communicates with the lowerheader 22, by a single pipe 26 and with the pump 15 by a pipe 27. Instead of the air space between the two casings 2-1, 25, I may prmiide packing such as asbestos or mineral woo insulated by packing or otherwise.

. I will now proceed to a description of the operation of my improved device whereby the cooling liquid is prevented from freezing during cold weather.

During the winter months, before starting the engine, the reservoir 25 is completely filled with water, not enough water being placed in the reservoir, however, to extend up into the lower header or any of the pipes. The engine is then started and the operation of the pump forces the water into the water jackets of the engine, thence out through the 'pipe 19 and into the upper end 20 of the In any case the pipe 27 is properly radiator. The water descends through the pipes and communicating ducts will return to the insulated reservoir 25, and will there be kept from freezing. Itwill be understood that the reservoir 25 will be of a size sufiicient to contain the water in these various parts. In weather when there is no danger of freezing the entire radiator may be filled with water if desired.

It will be readily understood that although I have shown my device for preventing the freezing of radiators as removably secured to the lower end of the well known radiator, that it might be an integral part thereof or that it might be located in some. other position, the only requirement being that it should be located in a plane below the lower end of the radiator and water jackets. I have also shown but one communicating pipe fromthe lower header of the radiator to the chamber inasmuch as I consider this preferable. Furthermore, I may prefer to place the pump 15 directly within the chamber 25, in order to prevent possible freezing thereof.

These and other modifications I consider within the scope of my invention.

I claim:

1. In an automobile, a radiator, an internal combustion engine having a water jacket in communication wtih the upper part of said radiator, a reservoir supported at a.

lower level than said radiator and having communication with the lower part of said radiator and with said jacket thus forming a continuously open circuit for the cooling.

liquid, said reservoir having walls formed of a heat insulating construction, a pump in the circuit formed by said jacket, radiator and reservoir for forcing coolin liquid from said reservoir through said jaclret and into the upper part of said radiator, whereby said liquid passes by gravity through said radiator when said pump is operated and whereby said radiator is drained into said reservoir by gravity when said pump is at rest.

2. In an automobile, a radiator, an internal combustion engine having a water jacket lower level than said radiator and jacket 20 and having communication with the lower part of said radiator and with said jacket thereby forming a continuously open circuit from which all of the cooling liquid tends to drain by gravity into said reservoir, said reservoir having walls formed of a heat insulating construction, a pump in said circuitfor forcing coolin liquid from said reservoir through said jacket and into the upper part of said radiator.

JOHN W. DALMAN.

' Witnesses: I

H. D. 'COMERFORD, F. L.- HANNAN. 

